Stove attachment.



No. 746,923. Patented December 1 5, 1903.

.UNITED STATES PATENT FFICE.

JAMES H. CLARK, OF PORTAGE, WlSOONSIN, ASSIGNOR TO THE JAMES H. CLARK OOMPANY, OF PORTAGE, WISCONSIN, A CORPORATION OF WIS- CONSIN.

STOVE ATTACHM ENT.

SPECIFICATION forming part of Letters Patent No. 746,923, dated December 15, 1903.

Application filedFelJruary 17, 1903. serial No. 143,888. (No model.)

T whom it y 0017106771: diagonal pipe 4, with its lower vertical por- Be it known that I, JAMES H. CLARK, acitition extending down through the bottom of zen of the United States, residing at Portage, said drum externally of I the stove and conin the county of Columbia and State of VVisnecting at its lower end with the ash-pit in a 55 5 cousin, have invented certain new and useful plane below the combustion-chamber, said Improvements in Stove Attachments; and'I portion extending well under the fire-grate. do hereby declare the following to be a full, Said angular pipe has its upperend provided clear, and exact description of the invention, with an upwardly-flared portion or terminal such as will enable others skilled in the art to 45", stopping about in a plane a little below 60 which it appertains to make a'nd use the same. the upper convergent portion of'the drum 1,

My invention relates to certain improvethe purpose of which will be presently apparments in attachments for stoves, furnaces, ent. A draft-pipe 5 has its vertical portion 650., designed more particularly for promotarranged to extend downwardly and termiing combustion, it also being adapted to pronating within a short distance of the floor 65 vide for inducing increased draft whereby or otherwise adapted to receive cold air and economy of fuel is obtained and increased suitablyprovided wit-ha hand-actuated damheating capacity secured. per. Said pipe has connected to its upper Said invention consists more especially of end an elbow or return pipe-section 5, passing means adapted to be adjusted for changing through the smoke-exit and depending within 70 the direction of the products of combustion said smoke-exit to a point within the flared as relates to the combustion-chamber and the upper end portion or terminalof the angular smoke-exit and of'certain details of construcor diagonal pipe lto provide for delivering tion, combination, and arrangement of parts; air-currents into said angular pipe.- Slipped substantially as hereinafter more fully disupon said depending portion of said return 75 closed, and specifically pointed out by the pipe-section o isasliding' pipe-section 6,with

' claims. its lower end provided with a conical termi- In the accompanying drawings, illustrating nal portion 6, adapted to enter or engage the the preferred embodiment of my invention, flared portion 4? of the angular pipe 4, with wherein is shown an ordinary heating-stove," its upper edge or flared portion provided with 80 Figure 1 is a side elevation thereof with my a reversed flared annular flange 6 adapted improvement applied thereto. Fig. 2 is .a to beengaged with the upper edge of said broken detached view with the parts in poflared terminal portion 4: or the top portion sition for effecting the return of the products of the drum 1, the purpose of which will be of combustion to the fire-pot. Fig. 3 is a View presently explained. Said sliding pipe-sec- 8 showing the parts permitting the escape of tion is adapted to be moved in efiecting such said products directly into the smoke-exit. adjustment preferably by means of a com- Fig. 4 is a view in cross-section looking downbined pawl and lover 7 7, said lever having ward, taken on line was of Fig. 1. its forked portion suitably'conn'ected' to said It will be understood thatI do not limit mysliding pipe-section and pivoted at a conven- 90 4o self herein to details, as they may be changed ient point upon or to a fixture attached to as circumstances suggest without departing said drum, said pawl 7 being pivoted at its from the spirit of my invention and said in-. angle to said lever, with its actuating end vention still remain intact and be protected. adapted to be conveniently grasped by the In carrying out my invention I preferably operator with the operation of said lever, the 5 employ a drum 1, superposed with relation toothed portion of said pawl engaging a to the stove, connection between which drum ratchet 7", which may constitute the support and stove being elfected by, preferably, a for the fulcrum of said lever. short pipe-section 2, connected therewith in It will be noted that with the conical ter' the usual manner, said drum connecting diminal of the sliding pipe-section 6 in the po- I00 rectly at its upper end with the smoke-exit 3. sition indicated in Fig. 3 the products of com- Within said drum is arranged an angular or bustion will pass directly out through the portion or elbow or return-section 5 through the angular pipe 4:, and through the pipe extension of said angular pipe into the ash-pit and up through the fire-grate, which draft can be readily regulated by the damper in said draft-pipe, as may be required. It will be seen that the heating capacity of the stove can thus be augmented when increased heat is required and that by directing the passage of the products of combustion out through the smoke-exit the heating action thereof can be lessened, while by the use of the drum containing the principal features of my invention the heating action is also increased. Also it will be observed that the products of combustion are thoroughly utilized by the tortuous route they are caused to travel through the drum, angular pipe, 850., and back into the combustion-chamber previous to delivery, while the draft supplied to the stove may be varied according to the requirements of the case.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1'. In an attachment of the character described, a drum adapted to be applied to a heater or fuel-burner, a pipe-section adapted to return the products of combustion to said heater or fuel-burner, a sliding pipe-section having a terminal adapted to engage the outlet end of said pipe-section and said drum at its upper end, and means for actuating said sliding pipe-section.

2. In an attachment of the character described, a drum'adapted to be applied to a heater or fuel-burner, inclosing an angular pipe-section adapted to return the products of combustion to said heater or fuel-burner having pipe connection with said heater or necting with the upper part of said drum,

and a sliding pipe-section having a conical terminal adapted to engage the outlet end of said angular pipe-section and provided with an annular flared flange at its upper edge adapted to engage said conical portion of said drum.

4. In an attachment of the character described, a drum adapted to be applied to a heater or fuel-burner, an angular pipe-section arranged Within said drum having pipe attachment with said heater or fuel-burner, below the fire-grate, and provided at its upper end with a flared terminal portion, a sliding pipe-section having a lower conical portion adapted to engage said flared outlet end of said angular pipe-section, and provided with an annularflared flange atits upper edge, adapted to engage said drumat its upper end, and means for effecting the movement or adjustment of said sliding pipe-section.

5. In an attachment of the character described, a drum adapted to be applied to a heater or fuel-burner having an upper conical portion connected to the smoke-exit and having at its lower end, laterally of its center, means for effecting pipe connection with said heater or fuel-burner, an angular pipesection arranged within said drum, having a downward pipe extension for connection-with said heater or fuel-burner, below the firegrate, the upper end of said angular pipesection having a flared outlet, a return pipesection depending within said drum, a sliding pipe-section arranged upon said return pipe-section, provided with a conical terminal at its lower end adapted to engage said flared outlet of said angular pipe-section, and means for actuating said sliding pipe-section.

6. In an attachment of the character described, a drum adapted to be applied to a heater or fuel-burner, having its upper conical portion connected to the smoke-exit and having at its lower end, laterally of its center, pipe connection with said heater or fuelburner, a draftpipe arranged externally of said drum and having an elbow or return pipe-section depending Within said drum, a sliding pipe-section arranged upon said return pipe-section and having a conical terminal at its lower end, means for actuating said sliding pipe-section, an angular pipe-section arranged within said drum, having an upper flared outlet adapted to receive said conical terminal of said sliding pipe-section, said sliding pipe-section'also having an annular flared flange adapted to engagethe upper portion of said drum, said angular pipe-section having pipe connect-ion with said heater or fuel-burner, below the fire-grate.

7. In an attachment of the character described, a drum having at its lower end, laterally of the center, pipe connection with a heater or fuel-burner, the upper end of said drum having a conical extension connected to the smoke-exit pipe, a draft-pipe arranged externally of said drum and having a return pipe-section extending into said smoke-exit pipe, with its depending portion entering said drum, a sliding pipe-section arranged upon said depending portion of said return pipe-section, means for adjusting or moving said sliding pipe-section, comprising a lever having a pawl, an angular pipe-see tion arranged within said drum having at its upper end a flared outlet adapted to receive the conical terminal of said sliding pipe-section, said conical terminal having an annular flared flange at its upper edge adapted to engage the upper edge of said drum, said angular pipe-section having pipe connection with said heater or fuel-burner,below the fii'egi'aie.

8. In an attachment of the character described, a drum adapted to be applied to a heater or fuel-burner, and containing an angular pipe-section adapted to return the products ofioomloustion to said heater or fuelburner, a sliding pipe-section adapted to engage the outlet end of said angular pipesection, and means for actuating said sliding 

